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<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
A vertex point is a vertex which has its geometry defined as a point. </blockquote> 

<blockquote class="note">NOTE&nbsp; Entity adapted from <strong>vertex_point</strong> defined in ISO 10303-42.</blockquote>
<blockquote class="history">HISTORY&nbsp; New entity in IFC2x.</blockquote> 

<p class="spec-head">Informal Propositions:</p> 
<ol> 
 <li>The domain of the vertex is formally defined to be the domain of its vertex point.</li> 
</ol> 

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